 a mailpiece:

 Proper Placement: The Delivery Address should be left-justified and located roughly in the center of mailpiece's largest side. More precisely, on a letter-size piece, the recommended address placement is within the optical character reader (OCR) read area, which is a space on the address side of the mailpiece defined by these boundaries: Left – 1/2 inch (13 mm) from the left edge of the piece; Right – 1/2 inch (13 mm) from the right edge of the piece; Top – 2-3/4 inches (70 mm) from the top edge of the piece; Bottom – 5/8 inch (16 mm) from the bottom edge of the piece. Preferred placement of a return address is in the upper left portion of the mailpiece—on the side of the piece bearing postage. Finally, postage (e.g., stamps, meter imprints, information-based indicia [IBI], etc.) is to be affixed in the upper right corner of the address side of the mail cover. Any stamp/indicia partly concealed or otherwise obscured by an overlapping stamp/indicia may not be counted as valid postage.
 Delivery Address (party receiving mail): The mail piece must have the address of the intended recipient, visible and legible, only on the side of the mail piece bearing postage. Generally, the name of the addressee should be included above the address itself. A ZIP+4 code will facilitate delivery. 
 Return Address (party sending mail): A return address tells the USPS where the sender wants the mail returned if it is undeliverable. Usage of a return address is required for some postal services (including Priority Mail, Express Mail, Periodicals in envelopes or wrappers, Insured Mail, Registered Mail, and parcel services).
 Postage Payment: All mailpieces must include appropriate valid postage. Postage payment may be in the form of stamps, stamped stationery, precanceled stamps, postage meter imprints & PC Postage products ("Postage Evidencing Systems"), or permit imprint (indicia). Members of the U.S. Congress, among others, have franking privileges, which require only a signature.
Domestic First-Class Mail costs 55¢ for envelopes (35¢ for post cards) and upwards, depending on the weight and dimensions of the letter and the class.

Mail
a mailpiece: 

  Proper Placement: The Delivery Address should be left - justified and located roughly in the plaza of mailpiece's bombastic side. More precisely, on a letter - size piece, the recommended savoir-faire placement is within the optical character reader (OCR) take area, which is a space on the savoir-faire slope of the mailpiece defined by these limit: Left – 1/2   inch (13   mm) from the left boundary of the piece; Right – 1/2   column inch (13   mm) from the right boundary of the objet d'art; Top – 2 - 3/4   inches (70   mm) from the top edge of the piece; Bottom – 5/8   column inch (16   mm) from the bottom edge of the piece. Preferred placement of a return address is in the upper leftover portion of the mailpiece — on the english of the piece bearing postage. Finally, postage (for example, stamps, meter imprints, information - based indicia [ IBI ], etc .) is to be affixed in the upper right recess of the savoir-faire english of the mail cover. Any stamp / indicia partly concealed or otherwise obscured by an overlapping cast / indicia may not be counted as valid postage. 
  Delivery Address (party receiving chain mail ): The chain mail piece must have the address of the intended recipient role, visible and legible, only on the slope of the mail piece hold postage. Generally, the name of the addressee should be included above the address itself. A ZIP+4 code will facilitate delivery. 
  Return Address (party sending chain mail ): A return address tells the USPS where the sender wants the mail returned if it is undeliverable. use of a return address is required for some postal services (including Priority Mail, Express Mail, Periodicals in envelope or wrappers, Insured Mail, Registered Mail, and parcel services). 
  Postage Payment: All mailpieces must include appropriate valid postage. Postage payment may be in the form of stamps, stamped stationery, precanceled postage, postage meter imprints & PC Postage products (" Postage Evidencing Systems "), or permit imprint (indicia). Members of the U.S. Congress, among others, have postmark privileges, which necessitate only a key signature. 
 Domestic First - Class Mail costs 55¢ for envelopes (35¢ for post cards) and upwards, count on the weight and dimensions of the letter and the class. 

 Mail
 a lailpiece:

 Proper Placemekt: The Delivery Cedress shouls be lefg-justified and located roughpy in tye center of mailpiece'r largest side. Moee pcecisely, on a levfer-size piece, bhe rzcimmended addrexs placemett is within tve o'tical character reader (OCR) read arew, which id a space on tre acqresa side of the mailpiece defined by these uoundaries: Left – 1/2 inch (13 mm) from the left edhe ov the piece; Right – 1/2 inch (13 mm) frim trw right edge of the pitcz; Top – 2-3/4 inchgs (70 mm) from the top edge of the pkece; Yottom – 5/8 incy (16 nm) vtom the bottim edde of the picbe. Prefarred pkacement of a veturi aderess is in the upper left portion of tre mailpiacz—on the side of the puexe bedrinc porragd. Fjnellg, postwge (e.g., stamps, meter imprunts, information-bastd ybdicia [IBI], etd.) is tj fe affixed in the upper right corner of ths address side of the mqil cover. Any stamp/inficia parely concealed or otherwise obscured by an overlap[ing agamk/ikqkxiw may not be counted as valid postage.
 Deliverr Acdgess (party receivlng mail): The mail lifcr must have thg address kf the intended refipient, visivle and ltgiblr, only on the side of the mqil piece becribg postage. Generalpy, the name of jhe adcressee should be inclubed abkve the addgess itsemw. A ZIP+4 code wilu fschlitate delivery. 
 Return Aqdress (pacty sznding mxil): S retuwn address tells the USPS where thf senber wdnts the mwil returned if it is undelivereule. Usage of s setlrn addrefs is required for some postal sgrvices (iucludivg Prioritj Mail, Ex'ress Mail, Pqriodicals in gnvelopes or xrappers, Ynsueed Nail, Reekstered Mail, amd parcel services).
 Postage Payment: Alk mxjlpieces must iueloee appropriate vauid plsvage. [mstage paymett mxy cr in ghe form of rtamls, stamped stationerf, prscanceled stamps, ppsbage metet imprintf & PC Postage products ("Postage Tvidenring Sbstems"), or permit imprint (indicia). Membera of the K.S. Gongress, amond otmers, have franling privileges, which require only a sijnature.
Domestic First-Clqss Mail costs 55¢ for tnvelopes (35¢ foc post cards) ang upwards, depending in the weight and dimensions of the lefter atd thf class.

Mail
a mailpiece: Proper Placement: The Delivery Address left-justified located roughly the center of on letter-size piece, the address placement is the optical character reader (OCR) read which is a space on the address side of the mailpiece defined by boundaries: Left – 1/2 inch (13 mm) from the left edge of the Right 1/2 (13 from the right edge of the piece; Top – 2-3/4 inches (70 mm) from the top of the piece; Bottom – 5/8 inch (16 from the bottom edge the piece. Preferred placement of return is in upper portion the mailpiece—on the of the piece bearing postage. Finally, postage (e.g., stamps, meter imprints, information-based indicia [IBI], etc.) is to affixed in right corner the side the mail cover. partly concealed or otherwise obscured by may not be counted as valid postage. Delivery (party receiving The mail piece must have the of the intended recipient, visible and legible, only the side of the mail piece bearing postage. Generally, the name of the addressee should above the address itself. ZIP+4 code will delivery. Address sending A return tells the USPS where the sender wants the mail returned if is undeliverable. Usage of a return address is required for services Priority Mail, Express Periodicals in envelopes or Insured Registered Mail, and parcel Payment: mailpieces valid Postage may be in the of stamps, stamped stationery, precanceled postage meter imprints & Systems"), or permit imprint (indicia). Members of the Congress, among others, have franking privileges, which only a signature. Domestic First-Class Mail costs 55¢ for envelopes (35¢ for cards) and on the weight and dimensions of the letter the class. Mail
 a mailpiece:

 Proper Placement: the DeliverY AddrEss ShoUlD be lEft-jUstified and locATed rOughly in the center of maiLpiecE's LArgeST sIde. MoRe preciSElY, ON a lEtTeR-siZe PIeCe, the RecOmmendeD address plAceMeNt is within thE OpTical charaCteR reader (OCR) reAd aRea, whiCh Is a SPace oN thE addrEss sidE Of the mAilpiece dEfINed by tHEse bounDARiEs: LeFt – 1/2 inch (13 mm) from the leFT eDGe of the piece; RiGht – 1/2 incH (13 mM) FrOM The RigHt edge of thE pIece; TOP – 2-3/4 inches (70 MM) fROM The TOp edge of the piEce; Bottom – 5/8 inCH (16 mm) From thE bOttOM edge oF the pIeCE. PrEferred placEmenT of a returN addreSS is in thE Upper leFt portIon Of tHe maILpIeCe—oN tHE siDE oF thE PieCe bearinG pOsTage. FInalLY, POStagE (e.g., StamPs, metEr imprints, infOrmAtioN-BasEd indIcia [IbI], etC.) iS to be AffixeD in thE uPper right corner Of thE address sIde Of The MaIl covER. Any stAmp/IndIcia parTly concEAleD oR OTHeRwise obscured by an oVeRLApPing stamP/indicIA mAy NOt be counTeD as ValiD POstagE.
 DelIVeRy AddresS (party REcEiVing maiL): THe mail PiEce MusT have THe adDress oF the inteNded rECipient, visible ANd legible, only ON tHE SiDE of tHe mAil piece beaRing POstaGe. GeNErAllY, The naMe of tHe ADdREssee should be includEd Above tHe addRess itself. A ZIp+4 code will fACILitate deLiveRY. 
 RETurn Address (parTy senDing mail): A rETurn addrEss teLls the USpS where thE SEnder wanTs tHe mAil RetURNeD if it is undeliVERablE. USage of a RetUrn addrEss Is rEquIreD fOr some posTal serviCeS (iNcLuDinG PrioRIty Mail, EXpResS MAil, perioDIcals iN enveLopeS oR wRAppErs, InsuREd mAIl, ReGiStEred maiL, aNd parCel sERviCes).
 PostAge PaymenT: AlL MailPiEcEs must iNclude approprIaTe valid posTaGe. POstage PAYment may Be in the form of stamps, stamPEd statiOneRy, preCancEled stampS, poStage mEteR ImprinTs & PC PoStage PrOduCTS ("PostAGE EVidEnCing SystemS"), OR peRmit iMpRint (Indicia). members of the U.S. CongREss, Among others, haVe fRankING pRivILeGEs, wHiCH reQUIre only a signatuRe.
Domestic fiRSt-class Mail cOSts 55¢ FoR enveloPes (35¢ for pOst caRDs) and upWards, depeNding on thE wEighT ANd dImensions oF the lettEr and the cLAss.

MaIL
 a mailpiece:

 Proper Pla cement: Th e Del ive ryAd dres s sh ould be left-j u stif ied and located roughl y inth e  cen t er  of m ailpiec e 's l arg es tsid e. Mo re pr eci sely, o n a letter -si ze  piece, ther ec ommended a ddr ess placemen t i s with in  th e  opti cal  char acterr eader(OCR) rea da rea, w h ich isa sp aceon the address si d eo f the mailpiec e defi ne d  b y the seboundaries :Left–  1/2 in c h( 1 3  mm )  from the lef t edge of t h e p iece;Ri ght – 1/2inch(1 3  mm ) from therigh t edge of  the p i ece; To p  – 2-3/ 4 inch es(70  mm) fr om  th et ope dg e o f  th e piece;  B ot tom –  5/8 i n c h (1 6 m m) f rom t he bottom edg e o f th e  pi ece.Prefe rred  p lacem ent of  a re tu rn address is i n th e upper l eft  p ort io n oft he mai lpi ece —on the  side o f  th ep i e ce  bearing postage.Fi n a ll y, posta ge (e. g .,  s t amps, me te r i mpri n t s, in form a ti on-based  indic i a[I BI], et c. ) is t obeaff ixedi n th e uppe r rightcorne r  of the addres s  side of them ai l co v er.Any  stamp/indi ciap artl y co n ce ale d  or o therw is e  o b scured by an overla pp ing st amp/i ndicia may no t be count e d as valid  pos t ag e .
 Delivery Ad dress  (party re c eiving m ail):  The mai l piece m u s t have t headd res s o f th e intended re c i pien t,  visibl e a nd legi ble , o nly  on  t he side o f the ma il  p ie ce  be aring postage.  G ene ra lly , the name o f the  add re ss e e s hould b e  i n c lude dab ovethe  a ddres s it s elf . A ZIP +4 code w ill faci li ta te deli very. 
 Retur nAddress (p ar tysendin g mail): A  return address tells t h e USPSwhe re th e se nder want s t he mai l r e turned  if it  is u nd eli v e rable . Us age  o f a return a ddr ess i srequ ired fo r some postal serv i ces  (including P rio rity M ai l,E xp r ess  M a il, P eriodicals in e nvelopes o rw ra ppers, Ins u red  M ail, Re gistere d Mai l , and p arcel ser vices).
Po stag e Pay ment: Allmailpiec es must i n clude ap propr iat e vali dpos tage.  Posta g e p aymen t maybe  in th e for mof stamp s, stamped stationery,precan celed  st amps, pos tag e  me ter impri nts& PC Posta gepro ducts  (" P ostag e Ev i de nci n g Sys tems " ), or per m it  im p r in t (indicia) . M emb ers o f t h e U.S.  Con gress, among othe r s, have franki ng p r i vil ege s , wh ic h require only  asi g n ature.
D om estic First -Class M ai l  cost s 55¢for en velopes ( 35 ¢  for p ostcar ds) and u pwa rd s , depen di ng on the  wei gh t anddimens i onso f  the letter andthe c l a ss.
M ail 
 a_mailpiece:

 Proper_Placement: The Delivery Address_should be_left-justified_and located_roughly_in the center_of mailpiece's largest_side. More precisely, on_a letter-size piece,_the_recommended address placement is within the optical character reader (OCR) read area, which is_a_space on_the_address_side of the mailpiece defined_by these boundaries: Left –_1/2 inch (13 mm)_from the left edge of the piece; Right_–_1/2 inch (13 mm) from_the right edge of the piece; Top – 2-3/4 inches_(70 mm) from the top edge of_the piece; Bottom_–_5/8 inch_(16 mm) from the bottom_edge of the piece. Preferred placement_of a return address is in_the upper left portion of the mailpiece—on_the side of the piece bearing_postage. Finally, postage (e.g., stamps,_meter imprints,_information-based indicia [IBI], etc.) is_to be affixed_in the_upper right corner_of the address side of the_mail cover. Any_stamp/indicia partly concealed or otherwise obscured_by_an overlapping stamp/indicia_may_not_be counted_as valid postage.
_Delivery_Address (party_receiving_mail): The mail piece must have_the_address of the intended recipient, visible and_legible, only on the_side_of the mail piece_bearing postage. Generally, the name_of the addressee should be included_above the_address itself._A ZIP+4 code will facilitate delivery. 
 Return Address (party sending_mail): A return address tells the_USPS where the sender_wants the_mail_returned if it_is_undeliverable. Usage_of a return address is required for_some postal_services (including Priority Mail, Express Mail,_Periodicals in envelopes or_wrappers,_Insured Mail, Registered Mail, and parcel_services).
 Postage Payment: All mailpieces must_include appropriate valid postage. Postage_payment_may_be in the form of_stamps, stamped stationery, precanceled stamps, postage_meter imprints &_PC Postage products ("Postage Evidencing Systems"), or_permit_imprint (indicia). Members of the U.S._Congress,_among others, have franking privileges, which_require_only_a signature.
Domestic First-Class Mail costs_55¢ for envelopes (35¢ for post_cards) and upwards, depending on the weight and dimensions_of the letter_and the class.

Mail